Multi Jet Semi-Dry (liquid Filled) Water Meter
Multi jet water meters are accurate in small sizes and widely used in 1/2" (15mm) to 2" (50mm) sizes for residential and smaller commercial uses, but are not used in larger sizes, since they don't have the straight-through flow path needed for the high flow rates used in large pipe diameters.
Multi jet water meters use multiple ports surrounding an internal chamber, to create a jet of water against an impeller. The impeller rotation speed is in relation to the velocity of water flow.
Multi jet water meters generally have an internal strainer element that can protect the jet ports from getting clogged.
Product catalog: Multi Jet Semi-Dry (liquid Filled) Water Meter